Item Type: Stud Rust Removal Tool Material: Plastic, stainless steel Color: Black, red, purple Maximum Stud Length: Approx. 8cm / 3.1in Applicable Screw Length: Approx. 3 ~ 80cm / 1.2 ~ 31.5in Applicable Screw Diameter: Approx. 3 ~ 16cm / 1.2 ~ 6.3in Package List 1 x Stud Rust Removal Tool 2 x Grinding Wheels 1CLEAN THOROUGHLY: Simultaneous cleaning of the hub and studs using an internal stainless steel stud cleaning system designed to thoroughly remove debris or contaminants from the felly, tread, studs and brake drums that could affect the overall tire or wheel process 2QUICK SCALE REMOVER: Easily removes rust, corrosion and other debris build up on tire rim, wheel studs and brake drums. Metal scale remover tool for cleaning metal surfaces and bolts or screws, and internal stainless steel bolt 3WORK WITH IMPACT GUN: Stud rust removal tool can work with 1/2in drive impact gun, support air or electric mode for quick cleaning 4WITH WIRE BRUSH AND GRINDING WHEEL: Lightweight design has an internal wire brush and a removable grinding wheel on the lower end for effective removal of rust from metal surfaces and screws and bolts, additional grinding wheel attachments can be installed when you want to sand metal surfaces 5GOOD COMPOSITION: Rust removal tool with 2 grinding wheels, when using with a 1/2in impact wrench or electric drill for fast and efficient use